./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-pthread/cs_lazy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-pthread/cs_lazy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:45:24,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:45:24,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:45:24,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:45:24,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:45:25,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:45:25,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:45:25,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:45:25,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:45:25,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:45:25,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:45:25,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:45:25,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:45:25,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:45:25,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:45:25,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:45:25,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:45:25,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:45:25,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:45:25,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:45:25,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:45:25,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:45:25,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:45:25,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:45:25,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:45:25,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:45:25,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:45:25,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:45:25,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:45:25,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:45:25,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:45:25,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:45:25,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:45:25,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:45:25,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:45:25,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:45:25,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:45:25,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:45:25,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:45:25,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:45:25,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:45:25,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:45:25,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:45:25,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:45:25,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:45:25,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:45:25,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:45:25,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:45:25,162 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:45:25,162 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:45:25,162 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:45:25,162 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:45:25,164 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:45:25,164 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:45:25,165 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:45:25,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:45:25,165 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:45:25,166 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:45:25,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:45:25,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:45:25,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:45:25,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:45:25,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:45:25,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:45:25,168 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:45:25,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:45:25,168 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:45:25,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:45:25,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:45:25,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:45:25,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:45:25,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:45:25,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:45:25,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:45:25,175 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:45:25,175 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f [2021-11-02 22:45:25,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:45:25,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:45:25,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:45:25,572 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:45:25,574 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:45:25,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/seq-pthread/cs_lazy.i [2021-11-02 22:45:25,697 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/data/bc8a60928/48f29e3829704fd2ab7a3aa0b72eaff6/FLAG15f43ba56 [2021-11-02 22:45:26,475 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:45:26,476 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/sv-benchmarks/c/seq-pthread/cs_lazy.i [2021-11-02 22:45:26,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/data/bc8a60928/48f29e3829704fd2ab7a3aa0b72eaff6/FLAG15f43ba56 [2021-11-02 22:45:26,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/data/bc8a60928/48f29e3829704fd2ab7a3aa0b72eaff6 [2021-11-02 22:45:26,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:45:26,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:45:26,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:45:26,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:45:26,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:45:26,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:45:26" (1/1) ... [2021-11-02 22:45:26,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28778fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:26, skipping insertion in model container [2021-11-02 22:45:26,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:45:26" (1/1) ... [2021-11-02 22:45:26,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:45:26,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:45:27,227 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/sv-benchmarks/c/seq-pthread/cs_lazy.i[23394,23407] [2021-11-02 22:45:27,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:45:27,358 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:45:27,427 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/sv-benchmarks/c/seq-pthread/cs_lazy.i[23394,23407] [2021-11-02 22:45:27,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:45:27,535 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:45:27,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27 WrapperNode [2021-11-02 22:45:27,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:45:27,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:45:27,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:45:27,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:45:27,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:27,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:27,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:45:27,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:45:27,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:45:27,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:45:27,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:27,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:27,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:27,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:27,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:27,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:27,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:28,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:45:28,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:45:28,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:45:28,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:45:28,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (1/1) ... [2021-11-02 22:45:28,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:45:28,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:45:28,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:45:28,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:45:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:45:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:45:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:45:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:45:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:45:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:45:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:45:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:45:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:45:28,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:45:28,471 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 22:45:28,472 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 22:45:28,523 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 22:45:28,524 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 22:45:28,558 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 22:45:28,559 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 22:45:28,582 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 22:45:28,583 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 22:45:43,612 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##686: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,612 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##685: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,612 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##693: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,612 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##692: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,613 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-11: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,613 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-11: assume !(0 != ~__CS_ret~0 % 256); [2021-11-02 22:45:43,613 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-12: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,613 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-12: assume !(0 != ~__CS_ret~0 % 256);havoc __CS_cs_#t~nondet5, __CS_cs_#t~nondet6, __CS_cs_#t~ite7, __CS_cs_~k~0;__CS_cs_~k~0 := __CS_cs_#t~nondet5;havoc __CS_cs_#t~nondet5; [2021-11-02 22:45:43,613 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-13: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,613 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-13: assume !(0 != ~__CS_ret~0 % 256); [2021-11-02 22:45:43,613 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-35: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,614 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-35: assume !(0 != ~__CS_ret~0 % 256); [2021-11-02 22:45:43,614 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-36: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,614 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-36: assume !(0 != ~__CS_ret~0 % 256);havoc __CS_cs_#t~nondet5, __CS_cs_#t~nondet6, __CS_cs_#t~ite7, __CS_cs_~k~0;__CS_cs_~k~0 := __CS_cs_#t~nondet5;havoc __CS_cs_#t~nondet5; [2021-11-02 22:45:43,614 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-37: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,614 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-37: assume !(0 != ~__CS_ret~0 % 256); [2021-11-02 22:45:43,614 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-59: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,614 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-59: assume !(0 != ~__CS_ret~0 % 256); [2021-11-02 22:45:43,614 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-60: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,615 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-60: assume !(0 != ~__CS_ret~0 % 256);havoc __CS_cs_#t~nondet5, __CS_cs_#t~nondet6, __CS_cs_#t~ite7, __CS_cs_~k~0;__CS_cs_~k~0 := __CS_cs_#t~nondet5;havoc __CS_cs_#t~nondet5; [2021-11-02 22:45:43,615 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-61: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,615 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-61: assume !(0 != ~__CS_ret~0 % 256); [2021-11-02 22:45:43,615 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-83: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,615 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-83: assume !(0 != ~__CS_ret~0 % 256); [2021-11-02 22:45:43,615 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-84: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,615 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-84: assume !(0 != ~__CS_ret~0 % 256);havoc __CS_cs_#t~nondet5, __CS_cs_#t~nondet6, __CS_cs_#t~ite7, __CS_cs_~k~0;__CS_cs_~k~0 := __CS_cs_#t~nondet5;havoc __CS_cs_#t~nondet5; [2021-11-02 22:45:43,616 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-85: assume 0 != ~__CS_ret~0 % 256;thread3_#res.base, thread3_#res.offset := 0, 0; [2021-11-02 22:45:43,616 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-85: assume !(0 != ~__CS_ret~0 % 256); [2021-11-02 22:45:43,616 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-33: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,616 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-33: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2); [2021-11-02 22:45:43,617 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-35: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,617 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-33: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,617 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-33: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,618 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-35: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,618 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-36: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,618 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-36: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,618 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-99: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,618 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-99: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2); [2021-11-02 22:45:43,619 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-38: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,619 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-39: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,619 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-39: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,619 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-101: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,619 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-41: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,620 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##421: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,620 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##420: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,620 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,620 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##428: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,621 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-165: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,621 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-165: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2); [2021-11-02 22:45:43,621 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-105: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,621 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-105: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,621 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-167: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,622 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-107: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,622 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-108: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,622 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-108: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,622 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-110: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,622 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-111: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,623 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-111: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,623 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-113: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,623 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-231: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,623 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-231: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2); [2021-11-02 22:45:43,623 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L561-233: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,624 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-177: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,624 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-177: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,624 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-179: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,624 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-180: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,625 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-180: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,625 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-182: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,625 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-183: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,625 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-183: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,625 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-185: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,626 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-249: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,626 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-249: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,626 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-251: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,626 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-252: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,626 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-252: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,627 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-254: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,627 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-255: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-02 22:45:43,627 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-255: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-02 22:45:43,627 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L563-257: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-02 22:45:43,627 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##951: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##950: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##958: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##957: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##155: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##156: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);assume false; [2021-11-02 22:45:43,629 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !!(~__CS_round~0 % 256 + __CS_cs_~k~0 % 256 < 2);~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256; [2021-11-02 22:45:43,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:45:43,645 INFO L299 CfgBuilder]: Removed 349 assume(true) statements. [2021-11-02 22:45:43,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:45:43 BoogieIcfgContainer [2021-11-02 22:45:43,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:45:43,650 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:45:43,650 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:45:43,654 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:45:43,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:45:43,655 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:45:26" (1/3) ... [2021-11-02 22:45:43,656 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1840a239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:45:43, skipping insertion in model container [2021-11-02 22:45:43,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:45:43,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:45:27" (2/3) ... [2021-11-02 22:45:43,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1840a239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:45:43, skipping insertion in model container [2021-11-02 22:45:43,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:45:43,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:45:43" (3/3) ... [2021-11-02 22:45:43,659 INFO L389 chiAutomizerObserver]: Analyzing ICFG cs_lazy.i [2021-11-02 22:45:43,703 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:45:43,703 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:45:43,704 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:45:43,704 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:45:43,704 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:45:43,704 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:45:43,704 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:45:43,704 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:45:43,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 686 states, 685 states have (on average 1.564963503649635) internal successors, (1072), 685 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:43,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 22:45:43,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:45:43,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:45:43,813 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:45:43,813 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-02 22:45:43,814 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:45:43,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 686 states, 685 states have (on average 1.564963503649635) internal successors, (1072), 685 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:43,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 22:45:43,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:45:43,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:45:43,842 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:45:43,842 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-02 22:45:43,847 INFO L791 eck$LassoCheckResult]: Stem: 667#ULTIMATE.startENTRYtrue havoc ULTIMATE.init_#t~nondet96, ULTIMATE.init_#t~nondet97;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10);~__CS_round~0 := 0;~__CS_ret~0 := 0;~__CS_ret_PREEMPTED~0 := 1;~__CS_ret_ERROR~0 := 2;~__CS_ret_FINISHED~0 := 4;~__CS_error~0 := 0;~__CS_thread_index~0 := 0;call ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 1 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 2 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 3 + ~#__CS_thread_allocated~0.offset, 1);call ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 1 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 2 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 3 + ~#__CS_thread_born_round~0.offset, 1);~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[0 := 0], ~__CS_thread~0.offset[0 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[1 := 0], ~__CS_thread~0.offset[1 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[2 := 0], ~__CS_thread~0.offset[2 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[3 := 0], ~__CS_thread~0.offset[3 := 0];call ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 1 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 2 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 3 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 4 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 5 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 6 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 7 + ~#__CS_thread_status~0.offset, 1);~__THREAD_UNUSED~0 := 0;~__THREAD_RUNNING~0 := 1;~__THREAD_FINISHED~0 := 2;call ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 4 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 8 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 12 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 16 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 20 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 24 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 28 + ~#__CS_thread_lockedon~0.offset, 4);call ~#mutex~0.base, ~#mutex~0.offset := #Ultimate.allocOnStack(2);call write~init~int(0, ~#mutex~0.base, ~#mutex~0.offset, 1);call write~init~int(0, ~#mutex~0.base, 1 + ~#mutex~0.offset, 1);call ~#data~0.base, ~#data~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#data~0.base, ~#data~0.offset, 4);call write~init~int(0, ~#data~0.base, 4 + ~#data~0.offset, 4);~__CS_u~0.mutex := ~__CS_u~0.mutex[0 := 0];~__CS_u~0.mutex := ~__CS_u~0.mutex[1 := 0];~__CS_u~0.data := ~__CS_u~0.data[0 := ULTIMATE.init_#t~nondet96];~__CS_u~0.data := ~__CS_u~0.data[1 := ULTIMATE.init_#t~nondet97];havoc ULTIMATE.init_#t~nondet96;havoc ULTIMATE.init_#t~nondet97; 575#L-1true havoc main_#res;havoc main_#t~nondet46, main_#t~nondet47, main_#t~pre45, main_~j~2, main_#t~nondet48, main_#t~nondet49, main_#t~pre44, main_~i~0, main_#t~mem50, main_#t~mem51, main_#t~mem52, main_#t~mem53, main_#t~mem54.base, main_#t~mem54.offset, main_#t~mem55.base, main_#t~mem55.offset, main_#t~mem56.base, main_#t~mem56.offset, main_#t~mem57.base, main_#t~mem57.offset, main_#t~mem58, main_#t~mem59, main_#t~mem60, main_#t~mem61, main_#t~ret63.base, main_#t~ret63.offset, main_#t~mem64, main_#t~mem65, main_#t~ret67.base, main_#t~ret67.offset, main_#t~mem68, main_#t~mem69, main_#t~ret71.base, main_#t~ret71.offset, main_#t~mem72, main_#t~mem73, main_#t~ret75.base, main_#t~ret75.offset, main_#t~mem76, main_#t~mem77, main_#t~mem78, main_#t~mem79, main_#t~mem80, main_#t~mem81, main_#t~mem82, main_#t~mem83, main_#t~mem84.base, main_#t~mem84.offset, main_#t~mem85.base, main_#t~mem85.offset, main_#t~mem86.base, main_#t~mem86.offset, main_#t~mem87.base, main_#t~mem87.offset, main_#t~mem88.base, main_#t~mem88.offset, main_#t~mem89.base, main_#t~mem89.offset, main_#t~mem90.base, main_#t~mem90.offset, main_#t~mem91.base, main_#t~mem91.offset, main_#t~mem92, main_#t~mem93, main_#t~mem94, main_#t~mem95, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset, main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset;call main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset := #Ultimate.allocOnStack(2);call main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset := #Ultimate.allocOnStack(8);main_~i~0 := 0; 423#L747-3true [2021-11-02 22:45:43,849 INFO L793 eck$LassoCheckResult]: Loop: 423#L747-3true assume !!(main_~i~0 < 2);main_~j~2 := 0; 602#L748-3true assume !(main_~j~2 < 4); 416#L748-4true call write~int(main_#t~nondet48, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset + main_~i~0, 1);havoc main_#t~nondet48;call write~int(main_#t~nondet49, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet49; 388#L747-2true main_#t~pre44 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre44; 423#L747-3true [2021-11-02 22:45:43,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-02 22:45:43,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:43,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570314701] [2021-11-02 22:45:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:43,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:44,014 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:45:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:44,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:45:44,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:44,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1237577, now seen corresponding path program 1 times [2021-11-02 22:45:44,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:44,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617804497] [2021-11-02 22:45:44,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:44,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:45:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:45:44,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:45:44,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617804497] [2021-11-02 22:45:44,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617804497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:45:44,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:45:44,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:45:44,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186938060] [2021-11-02 22:45:44,271 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:45:44,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:45:44,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:45:44,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:45:44,293 INFO L87 Difference]: Start difference. First operand has 686 states, 685 states have (on average 1.564963503649635) internal successors, (1072), 685 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:45:44,395 INFO L93 Difference]: Finished difference Result 688 states and 965 transitions. [2021-11-02 22:45:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:45:44,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 688 states and 965 transitions. [2021-11-02 22:45:44,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-11-02 22:45:44,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 688 states to 9 states and 10 transitions. [2021-11-02 22:45:44,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-11-02 22:45:44,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-11-02 22:45:44,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-11-02 22:45:44,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:45:44,415 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-02 22:45:44,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-11-02 22:45:44,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-11-02 22:45:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:44,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-02 22:45:44,444 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-02 22:45:44,444 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-02 22:45:44,444 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:45:44,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2021-11-02 22:45:44,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-02 22:45:44,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:45:44,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:45:44,446 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:45:44,446 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:45:44,446 INFO L791 eck$LassoCheckResult]: Stem: 1385#ULTIMATE.startENTRY havoc ULTIMATE.init_#t~nondet96, ULTIMATE.init_#t~nondet97;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10);~__CS_round~0 := 0;~__CS_ret~0 := 0;~__CS_ret_PREEMPTED~0 := 1;~__CS_ret_ERROR~0 := 2;~__CS_ret_FINISHED~0 := 4;~__CS_error~0 := 0;~__CS_thread_index~0 := 0;call ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 1 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 2 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 3 + ~#__CS_thread_allocated~0.offset, 1);call ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 1 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 2 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 3 + ~#__CS_thread_born_round~0.offset, 1);~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[0 := 0], ~__CS_thread~0.offset[0 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[1 := 0], ~__CS_thread~0.offset[1 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[2 := 0], ~__CS_thread~0.offset[2 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[3 := 0], ~__CS_thread~0.offset[3 := 0];call ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 1 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 2 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 3 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 4 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 5 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 6 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 7 + ~#__CS_thread_status~0.offset, 1);~__THREAD_UNUSED~0 := 0;~__THREAD_RUNNING~0 := 1;~__THREAD_FINISHED~0 := 2;call ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 4 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 8 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 12 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 16 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 20 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 24 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 28 + ~#__CS_thread_lockedon~0.offset, 4);call ~#mutex~0.base, ~#mutex~0.offset := #Ultimate.allocOnStack(2);call write~init~int(0, ~#mutex~0.base, ~#mutex~0.offset, 1);call write~init~int(0, ~#mutex~0.base, 1 + ~#mutex~0.offset, 1);call ~#data~0.base, ~#data~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#data~0.base, ~#data~0.offset, 4);call write~init~int(0, ~#data~0.base, 4 + ~#data~0.offset, 4);~__CS_u~0.mutex := ~__CS_u~0.mutex[0 := 0];~__CS_u~0.mutex := ~__CS_u~0.mutex[1 := 0];~__CS_u~0.data := ~__CS_u~0.data[0 := ULTIMATE.init_#t~nondet96];~__CS_u~0.data := ~__CS_u~0.data[1 := ULTIMATE.init_#t~nondet97];havoc ULTIMATE.init_#t~nondet96;havoc ULTIMATE.init_#t~nondet97; 1386#L-1 havoc main_#res;havoc main_#t~nondet46, main_#t~nondet47, main_#t~pre45, main_~j~2, main_#t~nondet48, main_#t~nondet49, main_#t~pre44, main_~i~0, main_#t~mem50, main_#t~mem51, main_#t~mem52, main_#t~mem53, main_#t~mem54.base, main_#t~mem54.offset, main_#t~mem55.base, main_#t~mem55.offset, main_#t~mem56.base, main_#t~mem56.offset, main_#t~mem57.base, main_#t~mem57.offset, main_#t~mem58, main_#t~mem59, main_#t~mem60, main_#t~mem61, main_#t~ret63.base, main_#t~ret63.offset, main_#t~mem64, main_#t~mem65, main_#t~ret67.base, main_#t~ret67.offset, main_#t~mem68, main_#t~mem69, main_#t~ret71.base, main_#t~ret71.offset, main_#t~mem72, main_#t~mem73, main_#t~ret75.base, main_#t~ret75.offset, main_#t~mem76, main_#t~mem77, main_#t~mem78, main_#t~mem79, main_#t~mem80, main_#t~mem81, main_#t~mem82, main_#t~mem83, main_#t~mem84.base, main_#t~mem84.offset, main_#t~mem85.base, main_#t~mem85.offset, main_#t~mem86.base, main_#t~mem86.offset, main_#t~mem87.base, main_#t~mem87.offset, main_#t~mem88.base, main_#t~mem88.offset, main_#t~mem89.base, main_#t~mem89.offset, main_#t~mem90.base, main_#t~mem90.offset, main_#t~mem91.base, main_#t~mem91.offset, main_#t~mem92, main_#t~mem93, main_#t~mem94, main_#t~mem95, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset, main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset;call main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset := #Ultimate.allocOnStack(2);call main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset := #Ultimate.allocOnStack(8);main_~i~0 := 0; 1387#L747-3 [2021-11-02 22:45:44,447 INFO L793 eck$LassoCheckResult]: Loop: 1387#L747-3 assume !!(main_~i~0 < 2);main_~j~2 := 0; 1383#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1384#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1388#L748-3 assume !(main_~j~2 < 4); 1389#L748-4 call write~int(main_#t~nondet48, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset + main_~i~0, 1);havoc main_#t~nondet48;call write~int(main_#t~nondet49, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet49; 1390#L747-2 main_#t~pre44 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre44; 1387#L747-3 [2021-11-02 22:45:44,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:44,448 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-11-02 22:45:44,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:44,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585750546] [2021-11-02 22:45:44,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:44,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:44,511 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:45:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:44,585 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:45:44,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1191030535, now seen corresponding path program 1 times [2021-11-02 22:45:44,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:44,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213164051] [2021-11-02 22:45:44,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:44,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:45:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:45:44,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:45:44,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213164051] [2021-11-02 22:45:44,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213164051] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:45:44,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703787469] [2021-11-02 22:45:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:44,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:45:44,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:45:44,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:45:44,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 22:45:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:45:44,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 22:45:44,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:45:44,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:45:44,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703787469] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:45:44,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:45:44,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-11-02 22:45:44,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631519236] [2021-11-02 22:45:44,788 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:45:44,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:45:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:45:44,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:45:44,789 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:45:44,812 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-11-02 22:45:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:45:44,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2021-11-02 22:45:44,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-02 22:45:44,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 12 transitions. [2021-11-02 22:45:44,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-02 22:45:44,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-02 22:45:44,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2021-11-02 22:45:44,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:45:44,819 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-02 22:45:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2021-11-02 22:45:44,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-02 22:45:44,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-02 22:45:44,826 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-02 22:45:44,826 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-02 22:45:44,827 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:45:44,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2021-11-02 22:45:44,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 22:45:44,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:45:44,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:45:44,828 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:45:44,829 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-11-02 22:45:44,829 INFO L791 eck$LassoCheckResult]: Stem: 1426#ULTIMATE.startENTRY havoc ULTIMATE.init_#t~nondet96, ULTIMATE.init_#t~nondet97;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10);~__CS_round~0 := 0;~__CS_ret~0 := 0;~__CS_ret_PREEMPTED~0 := 1;~__CS_ret_ERROR~0 := 2;~__CS_ret_FINISHED~0 := 4;~__CS_error~0 := 0;~__CS_thread_index~0 := 0;call ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 1 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 2 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 3 + ~#__CS_thread_allocated~0.offset, 1);call ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 1 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 2 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 3 + ~#__CS_thread_born_round~0.offset, 1);~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[0 := 0], ~__CS_thread~0.offset[0 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[1 := 0], ~__CS_thread~0.offset[1 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[2 := 0], ~__CS_thread~0.offset[2 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[3 := 0], ~__CS_thread~0.offset[3 := 0];call ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 1 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 2 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 3 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 4 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 5 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 6 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 7 + ~#__CS_thread_status~0.offset, 1);~__THREAD_UNUSED~0 := 0;~__THREAD_RUNNING~0 := 1;~__THREAD_FINISHED~0 := 2;call ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 4 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 8 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 12 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 16 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 20 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 24 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 28 + ~#__CS_thread_lockedon~0.offset, 4);call ~#mutex~0.base, ~#mutex~0.offset := #Ultimate.allocOnStack(2);call write~init~int(0, ~#mutex~0.base, ~#mutex~0.offset, 1);call write~init~int(0, ~#mutex~0.base, 1 + ~#mutex~0.offset, 1);call ~#data~0.base, ~#data~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#data~0.base, ~#data~0.offset, 4);call write~init~int(0, ~#data~0.base, 4 + ~#data~0.offset, 4);~__CS_u~0.mutex := ~__CS_u~0.mutex[0 := 0];~__CS_u~0.mutex := ~__CS_u~0.mutex[1 := 0];~__CS_u~0.data := ~__CS_u~0.data[0 := ULTIMATE.init_#t~nondet96];~__CS_u~0.data := ~__CS_u~0.data[1 := ULTIMATE.init_#t~nondet97];havoc ULTIMATE.init_#t~nondet96;havoc ULTIMATE.init_#t~nondet97; 1427#L-1 havoc main_#res;havoc main_#t~nondet46, main_#t~nondet47, main_#t~pre45, main_~j~2, main_#t~nondet48, main_#t~nondet49, main_#t~pre44, main_~i~0, main_#t~mem50, main_#t~mem51, main_#t~mem52, main_#t~mem53, main_#t~mem54.base, main_#t~mem54.offset, main_#t~mem55.base, main_#t~mem55.offset, main_#t~mem56.base, main_#t~mem56.offset, main_#t~mem57.base, main_#t~mem57.offset, main_#t~mem58, main_#t~mem59, main_#t~mem60, main_#t~mem61, main_#t~ret63.base, main_#t~ret63.offset, main_#t~mem64, main_#t~mem65, main_#t~ret67.base, main_#t~ret67.offset, main_#t~mem68, main_#t~mem69, main_#t~ret71.base, main_#t~ret71.offset, main_#t~mem72, main_#t~mem73, main_#t~ret75.base, main_#t~ret75.offset, main_#t~mem76, main_#t~mem77, main_#t~mem78, main_#t~mem79, main_#t~mem80, main_#t~mem81, main_#t~mem82, main_#t~mem83, main_#t~mem84.base, main_#t~mem84.offset, main_#t~mem85.base, main_#t~mem85.offset, main_#t~mem86.base, main_#t~mem86.offset, main_#t~mem87.base, main_#t~mem87.offset, main_#t~mem88.base, main_#t~mem88.offset, main_#t~mem89.base, main_#t~mem89.offset, main_#t~mem90.base, main_#t~mem90.offset, main_#t~mem91.base, main_#t~mem91.offset, main_#t~mem92, main_#t~mem93, main_#t~mem94, main_#t~mem95, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset, main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset;call main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset := #Ultimate.allocOnStack(2);call main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset := #Ultimate.allocOnStack(8);main_~i~0 := 0; 1428#L747-3 [2021-11-02 22:45:44,829 INFO L793 eck$LassoCheckResult]: Loop: 1428#L747-3 assume !!(main_~i~0 < 2);main_~j~2 := 0; 1429#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1430#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1424#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1425#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1433#L748-3 assume !(main_~j~2 < 4); 1431#L748-4 call write~int(main_#t~nondet48, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset + main_~i~0, 1);havoc main_#t~nondet48;call write~int(main_#t~nondet49, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet49; 1432#L747-2 main_#t~pre44 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre44; 1428#L747-3 [2021-11-02 22:45:44,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:44,830 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-11-02 22:45:44,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:44,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776849984] [2021-11-02 22:45:44,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:44,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:44,899 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:45:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:44,938 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:45:44,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2120762437, now seen corresponding path program 2 times [2021-11-02 22:45:44,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:44,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182692009] [2021-11-02 22:45:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:44,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:45:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:45:45,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:45:45,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182692009] [2021-11-02 22:45:45,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182692009] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:45:45,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966878958] [2021-11-02 22:45:45,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:45:45,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:45:45,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:45:45,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:45:45,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 22:45:45,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:45:45,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:45:45,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:45:45,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:45:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:45:45,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966878958] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:45:45,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:45:45,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-02 22:45:45,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574970148] [2021-11-02 22:45:45,251 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:45:45,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:45:45,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:45:45,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:45:45,253 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. cyclomatic complexity: 2 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:45:45,293 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-11-02 22:45:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:45:45,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2021-11-02 22:45:45,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-11-02 22:45:45,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2021-11-02 22:45:45,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-11-02 22:45:45,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-11-02 22:45:45,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2021-11-02 22:45:45,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:45:45,298 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-02 22:45:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2021-11-02 22:45:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-11-02 22:45:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:45,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-11-02 22:45:45,300 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-11-02 22:45:45,300 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-11-02 22:45:45,300 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 22:45:45,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2021-11-02 22:45:45,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-11-02 22:45:45,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:45:45,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:45:45,302 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:45:45,302 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 1, 1, 1, 1] [2021-11-02 22:45:45,302 INFO L791 eck$LassoCheckResult]: Stem: 1478#ULTIMATE.startENTRY havoc ULTIMATE.init_#t~nondet96, ULTIMATE.init_#t~nondet97;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10);~__CS_round~0 := 0;~__CS_ret~0 := 0;~__CS_ret_PREEMPTED~0 := 1;~__CS_ret_ERROR~0 := 2;~__CS_ret_FINISHED~0 := 4;~__CS_error~0 := 0;~__CS_thread_index~0 := 0;call ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 1 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 2 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 3 + ~#__CS_thread_allocated~0.offset, 1);call ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 1 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 2 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 3 + ~#__CS_thread_born_round~0.offset, 1);~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[0 := 0], ~__CS_thread~0.offset[0 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[1 := 0], ~__CS_thread~0.offset[1 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[2 := 0], ~__CS_thread~0.offset[2 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[3 := 0], ~__CS_thread~0.offset[3 := 0];call ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 1 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 2 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 3 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 4 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 5 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 6 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 7 + ~#__CS_thread_status~0.offset, 1);~__THREAD_UNUSED~0 := 0;~__THREAD_RUNNING~0 := 1;~__THREAD_FINISHED~0 := 2;call ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 4 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 8 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 12 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 16 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 20 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 24 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 28 + ~#__CS_thread_lockedon~0.offset, 4);call ~#mutex~0.base, ~#mutex~0.offset := #Ultimate.allocOnStack(2);call write~init~int(0, ~#mutex~0.base, ~#mutex~0.offset, 1);call write~init~int(0, ~#mutex~0.base, 1 + ~#mutex~0.offset, 1);call ~#data~0.base, ~#data~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#data~0.base, ~#data~0.offset, 4);call write~init~int(0, ~#data~0.base, 4 + ~#data~0.offset, 4);~__CS_u~0.mutex := ~__CS_u~0.mutex[0 := 0];~__CS_u~0.mutex := ~__CS_u~0.mutex[1 := 0];~__CS_u~0.data := ~__CS_u~0.data[0 := ULTIMATE.init_#t~nondet96];~__CS_u~0.data := ~__CS_u~0.data[1 := ULTIMATE.init_#t~nondet97];havoc ULTIMATE.init_#t~nondet96;havoc ULTIMATE.init_#t~nondet97; 1479#L-1 havoc main_#res;havoc main_#t~nondet46, main_#t~nondet47, main_#t~pre45, main_~j~2, main_#t~nondet48, main_#t~nondet49, main_#t~pre44, main_~i~0, main_#t~mem50, main_#t~mem51, main_#t~mem52, main_#t~mem53, main_#t~mem54.base, main_#t~mem54.offset, main_#t~mem55.base, main_#t~mem55.offset, main_#t~mem56.base, main_#t~mem56.offset, main_#t~mem57.base, main_#t~mem57.offset, main_#t~mem58, main_#t~mem59, main_#t~mem60, main_#t~mem61, main_#t~ret63.base, main_#t~ret63.offset, main_#t~mem64, main_#t~mem65, main_#t~ret67.base, main_#t~ret67.offset, main_#t~mem68, main_#t~mem69, main_#t~ret71.base, main_#t~ret71.offset, main_#t~mem72, main_#t~mem73, main_#t~ret75.base, main_#t~ret75.offset, main_#t~mem76, main_#t~mem77, main_#t~mem78, main_#t~mem79, main_#t~mem80, main_#t~mem81, main_#t~mem82, main_#t~mem83, main_#t~mem84.base, main_#t~mem84.offset, main_#t~mem85.base, main_#t~mem85.offset, main_#t~mem86.base, main_#t~mem86.offset, main_#t~mem87.base, main_#t~mem87.offset, main_#t~mem88.base, main_#t~mem88.offset, main_#t~mem89.base, main_#t~mem89.offset, main_#t~mem90.base, main_#t~mem90.offset, main_#t~mem91.base, main_#t~mem91.offset, main_#t~mem92, main_#t~mem93, main_#t~mem94, main_#t~mem95, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset, main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset;call main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset := #Ultimate.allocOnStack(2);call main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset := #Ultimate.allocOnStack(8);main_~i~0 := 0; 1480#L747-3 [2021-11-02 22:45:45,302 INFO L793 eck$LassoCheckResult]: Loop: 1480#L747-3 assume !!(main_~i~0 < 2);main_~j~2 := 0; 1481#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1482#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1476#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1477#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1487#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1486#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1485#L748-3 assume !(main_~j~2 < 4); 1483#L748-4 call write~int(main_#t~nondet48, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset + main_~i~0, 1);havoc main_#t~nondet48;call write~int(main_#t~nondet49, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet49; 1484#L747-2 main_#t~pre44 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre44; 1480#L747-3 [2021-11-02 22:45:45,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:45,315 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2021-11-02 22:45:45,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:45,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495286361] [2021-11-02 22:45:45,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:45,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:45,358 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:45:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:45,423 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:45:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:45,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2055044605, now seen corresponding path program 3 times [2021-11-02 22:45:45,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:45,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468269658] [2021-11-02 22:45:45,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:45,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:45:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:45:45,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:45:45,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468269658] [2021-11-02 22:45:45,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468269658] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:45:45,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605067277] [2021-11-02 22:45:45,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 22:45:45,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:45:45,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:45:45,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:45:45,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84479dc7-4071-4b1c-993b-26938539d1c0/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 22:45:45,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-02 22:45:45,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:45:45,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 22:45:45,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:45:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:45:45,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605067277] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:45:45,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:45:45,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-11-02 22:45:45,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867305654] [2021-11-02 22:45:45,936 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:45:45,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:45:45,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:45:45,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:45:45,942 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:45:45,990 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-11-02 22:45:45,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:45:45,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2021-11-02 22:45:45,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-11-02 22:45:45,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 15 transitions. [2021-11-02 22:45:45,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-02 22:45:45,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-02 22:45:45,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2021-11-02 22:45:45,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:45:45,995 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-11-02 22:45:45,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2021-11-02 22:45:45,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-02 22:45:45,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:45:45,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-11-02 22:45:45,998 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-11-02 22:45:45,998 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-11-02 22:45:45,998 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-02 22:45:45,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 15 transitions. [2021-11-02 22:45:45,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-11-02 22:45:45,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:45:45,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:45:46,000 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:45:46,000 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 1, 1, 1, 1] [2021-11-02 22:45:46,000 INFO L791 eck$LassoCheckResult]: Stem: 1540#ULTIMATE.startENTRY havoc ULTIMATE.init_#t~nondet96, ULTIMATE.init_#t~nondet97;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10);~__CS_round~0 := 0;~__CS_ret~0 := 0;~__CS_ret_PREEMPTED~0 := 1;~__CS_ret_ERROR~0 := 2;~__CS_ret_FINISHED~0 := 4;~__CS_error~0 := 0;~__CS_thread_index~0 := 0;call ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_allocated~0.base, ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 1 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 2 + ~#__CS_thread_allocated~0.offset, 1);call write~init~int(0, ~#__CS_thread_allocated~0.base, 3 + ~#__CS_thread_allocated~0.offset, 1);call ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset := #Ultimate.allocOnStack(4);call write~init~int(0, ~#__CS_thread_born_round~0.base, ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 1 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 2 + ~#__CS_thread_born_round~0.offset, 1);call write~init~int(0, ~#__CS_thread_born_round~0.base, 3 + ~#__CS_thread_born_round~0.offset, 1);~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[0 := 0], ~__CS_thread~0.offset[0 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[1 := 0], ~__CS_thread~0.offset[1 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[2 := 0], ~__CS_thread~0.offset[2 := 0];~__CS_thread~0.base, ~__CS_thread~0.offset := ~__CS_thread~0.base[3 := 0], ~__CS_thread~0.offset[3 := 0];call ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#__CS_thread_status~0.base, ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 1 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 2 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 3 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 4 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 5 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 6 + ~#__CS_thread_status~0.offset, 1);call write~init~int(0, ~#__CS_thread_status~0.base, 7 + ~#__CS_thread_status~0.offset, 1);~__THREAD_UNUSED~0 := 0;~__THREAD_RUNNING~0 := 1;~__THREAD_FINISHED~0 := 2;call ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 4 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 8 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 12 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 16 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 20 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 24 + ~#__CS_thread_lockedon~0.offset, 4);call write~init~$Pointer$(0, 0, ~#__CS_thread_lockedon~0.base, 28 + ~#__CS_thread_lockedon~0.offset, 4);call ~#mutex~0.base, ~#mutex~0.offset := #Ultimate.allocOnStack(2);call write~init~int(0, ~#mutex~0.base, ~#mutex~0.offset, 1);call write~init~int(0, ~#mutex~0.base, 1 + ~#mutex~0.offset, 1);call ~#data~0.base, ~#data~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#data~0.base, ~#data~0.offset, 4);call write~init~int(0, ~#data~0.base, 4 + ~#data~0.offset, 4);~__CS_u~0.mutex := ~__CS_u~0.mutex[0 := 0];~__CS_u~0.mutex := ~__CS_u~0.mutex[1 := 0];~__CS_u~0.data := ~__CS_u~0.data[0 := ULTIMATE.init_#t~nondet96];~__CS_u~0.data := ~__CS_u~0.data[1 := ULTIMATE.init_#t~nondet97];havoc ULTIMATE.init_#t~nondet96;havoc ULTIMATE.init_#t~nondet97; 1541#L-1 havoc main_#res;havoc main_#t~nondet46, main_#t~nondet47, main_#t~pre45, main_~j~2, main_#t~nondet48, main_#t~nondet49, main_#t~pre44, main_~i~0, main_#t~mem50, main_#t~mem51, main_#t~mem52, main_#t~mem53, main_#t~mem54.base, main_#t~mem54.offset, main_#t~mem55.base, main_#t~mem55.offset, main_#t~mem56.base, main_#t~mem56.offset, main_#t~mem57.base, main_#t~mem57.offset, main_#t~mem58, main_#t~mem59, main_#t~mem60, main_#t~mem61, main_#t~ret63.base, main_#t~ret63.offset, main_#t~mem64, main_#t~mem65, main_#t~ret67.base, main_#t~ret67.offset, main_#t~mem68, main_#t~mem69, main_#t~ret71.base, main_#t~ret71.offset, main_#t~mem72, main_#t~mem73, main_#t~ret75.base, main_#t~ret75.offset, main_#t~mem76, main_#t~mem77, main_#t~mem78, main_#t~mem79, main_#t~mem80, main_#t~mem81, main_#t~mem82, main_#t~mem83, main_#t~mem84.base, main_#t~mem84.offset, main_#t~mem85.base, main_#t~mem85.offset, main_#t~mem86.base, main_#t~mem86.offset, main_#t~mem87.base, main_#t~mem87.offset, main_#t~mem88.base, main_#t~mem88.offset, main_#t~mem89.base, main_#t~mem89.offset, main_#t~mem90.base, main_#t~mem90.offset, main_#t~mem91.base, main_#t~mem91.offset, main_#t~mem92, main_#t~mem93, main_#t~mem94, main_#t~mem95, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset, main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset;call main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset := #Ultimate.allocOnStack(8);call main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset := #Ultimate.allocOnStack(32);call main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset := #Ultimate.allocOnStack(2);call main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset := #Ultimate.allocOnStack(8);main_~i~0 := 0; 1542#L747-3 [2021-11-02 22:45:46,000 INFO L793 eck$LassoCheckResult]: Loop: 1542#L747-3 assume !!(main_~i~0 < 2);main_~j~2 := 0; 1543#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1544#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1538#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1539#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1551#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1550#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1549#L748-3 assume !!(main_~j~2 < 4);call write~int(main_#t~nondet46, main_~#__CS_cp___CS_thread_status~0.base, main_~#__CS_cp___CS_thread_status~0.offset + 4 * main_~i~0 + main_~j~2, 1);havoc main_#t~nondet46;call write~$Pointer$(0, (if main_#t~nondet47 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet47 % 4294967296 % 4294967296 else main_#t~nondet47 % 4294967296 % 4294967296 - 4294967296), main_~#__CS_cp___CS_thread_lockedon~0.base, main_~#__CS_cp___CS_thread_lockedon~0.offset + 16 * main_~i~0 + 4 * main_~j~2, 4);havoc main_#t~nondet47; 1548#L748-2 main_#t~pre45 := 1 + main_~j~2;main_~j~2 := 1 + main_~j~2;havoc main_#t~pre45; 1547#L748-3 assume !(main_~j~2 < 4); 1545#L748-4 call write~int(main_#t~nondet48, main_~#__CS_cp_mutex~0.base, main_~#__CS_cp_mutex~0.offset + main_~i~0, 1);havoc main_#t~nondet48;call write~int(main_#t~nondet49, main_~#__CS_cp_data~0.base, main_~#__CS_cp_data~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet49; 1546#L747-2 main_#t~pre44 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre44; 1542#L747-3 [2021-11-02 22:45:46,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:46,001 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2021-11-02 22:45:46,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:46,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938306687] [2021-11-02 22:45:46,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:46,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:46,030 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:45:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:46,081 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:45:46,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:46,082 INFO L85 PathProgramCache]: Analyzing trace with hash 788809793, now seen corresponding path program 4 times [2021-11-02 22:45:46,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:46,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422574509] [2021-11-02 22:45:46,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:46,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:46,131 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:45:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:46,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:45:46,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:45:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash 2002958595, now seen corresponding path program 1 times [2021-11-02 22:45:46,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:45:46,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666710501] [2021-11-02 22:45:46,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:45:46,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:45:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:46,318 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:45:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:45:46,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:49:17,213 WARN L207 SmtUtils]: Spent 3.51 m on a formula simplification. DAG size of input: 318 DAG size of output: 287